I have a 1993 arctic cat mountain cat 700 snowmobile, on the mag side cylinder I am not getting oil to pump through the line(line has a little bit of oil in it but just bubbling mostly dry) , but my PTO side is getting lots of oil , thx
Oil line kinked, plugged, collapsed, or brass line in manifold plugged, pinched, line leaking, line sucking air not fitted tight at both ends, pump not bled before installing etc... When I rebuilt mine I bled all the lines with a drill before installing. If ya remove oil pump, run cordless drill in REVERSE I bet the pump runs both sides unless plugged. Pump either works or it don't. and you have one side working plus the crank. I'm sure the pumps go bad... But I have yet to see one. The Mikuni pump is pretty reliable set correctly.